public List <string> GenerateLicenseKeys(string rsaXmlString, LicenseBase scutexLicense,
LicenseGenerationOptions generationOptions, int count)
{
HashSet <string> licenses = new HashSet <string>();
int doupCount = 0;
while (licenses.Count < count)
{
string key = GenerateLicenseKey(rsaXmlString, scutexLicense, generationOptions);
if (licenses.Contains(key) == false)
{
licenses.Add(key);
//Debug.WriteLine(string.Format("{0} of {1} keys generated", licenses.Count, count));
}
else
{
doupCount++;
Debug.WriteLine(string.Format("Duplicate key was generated {0}", key));
}
}
if (doupCount > 0)
{
Debug.WriteLine(string.Format("{0} duplicate keys were generated at a {1}% chance", doupCount, doupCount * 100m / count));
}
return(licenses.ToList());
}
private bool ValidateKey(string licenseKey, LicenseBase scutexLicense)
{
if (licenseKey.Length == 15)
{
return(keyGenerator.ValidateLicenseKey(licenseKey, scutexLicense));
}
else
{
return(_largeKeyGenerator.ValidateLicenseKey(licenseKey, scutexLicense));
}
}
private KeyData GetKeyData(string licenseKey, LicenseBase scutexLicense)
{
if (licenseKey.Length == 15)
{
return(keyGenerator.GetLicenseKeyData(licenseKey, scutexLicense));
}
else
{
return(_largeKeyGenerator.GetLicenseKeyData(licenseKey, scutexLicense));
}
}
public string GenerateLicenseKey(string rsaXmlString, LicenseBase scutexLicense,
LicenseGenerationOptions generationOptions)
{
if (generationOptions.GeneratorType == KeyGeneratorTypes.StaticSmall)
{
return(keyGenerator.GenerateLicenseKey(rsaXmlString, scutexLicense, generationOptions));
}
else
{
return(_largeKeyGenerator.GenerateLicenseKey(rsaXmlString, scutexLicense, generationOptions));
}
}
private void btnParseKey_Click(object sender, System.EventArgs e)
{
LicenseBase licenseBase = new LicenseBase();
try
{
licenseBase.LicenseKey = tbKey.Text;
SetKeyNumber(licenseBase);
switch (licenseBase.LicenseObject.Type)
{
case LicenseType.LicenseTypes.Trial:
cbLicenseType.SelectedIndex = 0;
calDate.SelectionStart = licenseBase.ExpiryDate.LicenseDateTime;
break;
case LicenseType.LicenseTypes.Full:
cbLicenseType.SelectedIndex = 1;
calDate.SelectionStart = licenseBase.RegistrationDate.LicenseDateTime;
break;
case LicenseType.LicenseTypes.Invalid:
cbLicenseType.SelectedIndex = 2;
break;
case LicenseType.LicenseTypes.None:
cbLicenseType.SelectedIndex = 3;
break;
default:
throw new Exception("Key parsing error");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
switch (licenseBase.ProductObject.ProductCode)
{
case Product.Products.None:
cbProduct.SelectedIndex = 0;
break;
case Product.Products.XEditNetCtrl:
cbProduct.SelectedIndex = 1;
break;
default:
throw new Exception("Key parsing error");
}
cbRelease.SelectedIndex = licenseBase.ReleaseObject.Value;
}
private void SetKeyNumber(LicenseBase licenseBase)
{
LicenseRandomNumber[] numbers = licenseBase.LicenceNumberObject;
StringBuilder sb = new StringBuilder();
foreach (LicenseRandomNumber number in numbers)
{
sb.AppendFormat("{0:000}-", number.Value);
}
string keyNumber = sb.ToString();
tbKeyNumber.Text = keyNumber.Substring(0, keyNumber.Length - 1);
}
public ServiceLicense(LicenseBase licenseBase)
{
base.UniqueId = licenseBase.UniqueId;
base.KeyPair = licenseBase.KeyPair;
if (base.KeyPair != null)
base.KeyPair.PrivateKey = base.KeyPair.PublicKey; // We can't include the private license on the client side.
base.LicenseSets = licenseBase.LicenseSets;
base.Product = licenseBase.Product;
base.TrailNotificationSettings = licenseBase.TrailNotificationSettings;
base.TrialNotificationType = licenseBase.TrialNotificationType;
base.TrialSettings = licenseBase.TrialSettings;
base.KeyGeneratorType = licenseBase.KeyGeneratorType;
}
public bool ValidateLicenseKey(string licenseKey, LicenseBase scutexLicense, bool catchException)
{
if (catchException)
{
try
{
return(ValidateKey(licenseKey, scutexLicense));
}
catch (ScutexLicenseException)
{
return(false);
}
}
return(ValidateKey(licenseKey, scutexLicense));
}
public ServiceLicense(LicenseBase licenseBase)
{
base.UniqueId = licenseBase.UniqueId;
base.KeyPair = licenseBase.KeyPair;
if (base.KeyPair != null)
{
base.KeyPair.PrivateKey = base.KeyPair.PublicKey; // We can't include the private license on the client side.
}
base.LicenseSets = licenseBase.LicenseSets;
base.Product = licenseBase.Product;
base.TrailNotificationSettings = licenseBase.TrailNotificationSettings;
base.TrialNotificationType = licenseBase.TrialNotificationType;
base.TrialSettings = licenseBase.TrialSettings;
base.KeyGeneratorType = licenseBase.KeyGeneratorType;
}
private void btnGenerateKey_Click(object sender, System.EventArgs e)
{
LicenseBase licenseBase = new LicenseBase();
switch (cbLicenseType.SelectedIndex)
{
case 0:
licenseBase.LicenseObject.Type = LicenseType.LicenseTypes.None;
break;
case 1:
licenseBase.LicenseObject.Type = LicenseType.LicenseTypes.Trial;
licenseBase.ExpiryDate.LicenseDateTime = calDate.SelectionStart;
break;
case 2:
licenseBase.LicenseObject.Type = LicenseType.LicenseTypes.Full;
licenseBase.RegistrationDate.LicenseDateTime = calDate.SelectionStart;
break;
case 3:
licenseBase.LicenseObject.Type = LicenseType.LicenseTypes.Invalid;
break;
default:
throw new Exception("Key generation error");
}
switch (cbProduct.SelectedIndex)
{
case 0:
licenseBase.ProductObject.ProductCode = Product.Products.None;
break;
case 1:
licenseBase.ProductObject.ProductCode = Product.Products.XEditNetCtrl;
break;
default:
throw new Exception("Key generation error");
}
licenseBase.ReleaseObject.Value = (int)Enum.Parse(typeof(Release.Releases), cbRelease.SelectedItem.ToString());
tbKey.Text = licenseBase.LicenseKey;
SetKeyNumber(licenseBase);
}
public XEditNetLicence(string strSavedLicense)
{
/*
* Constructor, creates and destroys the underlying real BaseLicense,
* providing access to the 3 public Members, LicenseKey, Validity and ExpiryDate
* */
try
{
LicenseBase licReal= new LicenseBase(strSavedLicense.ToUpper());
licenseKey=licReal.LicenseKey;
validity=XEditNetLicenseValidator.ValidateLicense(LicenseKey);
if ( licReal.LicenseObject.Type == LicenseType.LicenseTypes.Trial )
expiryDate=licReal.ExpiryDate.LicenseDateTime;
licReal=null;
}
catch (InvalidLicenseException)
{
validity=LicenseState.Invalid;
expiryDate=DateTime.MinValue;
}
}
public KeyData GetLicenseKeyData(string licenseKey, LicenseBase scutexLicense, bool catchException)
{
if (licenseKey == null)
{
throw new ArgumentNullException("licenseKey");
}
KeyData data = null;
if (catchException)
{
try
{
return(GetKeyData(licenseKey, scutexLicense));
}
catch (ScutexLicenseException)
{
return(data);
}
}
return(GetKeyData(licenseKey, scutexLicense));
}
public bool ValidateLicenseKey(string licenseKey, LicenseBase scutexLicense)
{
// Init all required variables for the process.
Dictionary <int, LicensePlaceholder> placeholerLocations;
List <LicensePlaceholder> licensePlaceholders = CreateLicensePlaceholders(scutexLicense, null);
char[] licenseKeyArray;
string decodedLicenseKey = licenseKey.Replace("-", "");
// Locate all the placeholder tokens in the license template
placeholerLocations = FindAllPlaceholdersInTemplate(licenseKeyTemplate.Replace("-", ""), licensePlaceholders);
// STEP 1: Basic length checks
if (licenseKey.Length != licenseKeyTemplate.Length)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
if (decodedLicenseKey.Length != licenseKeyTemplate.Replace("-", "").Length)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
// STEP 2: Compute and verify all the checksum placeholders in the key
foreach (var p in placeholerLocations)
{
if (p.Value.IsChecksum)
{
string originalHash;
int originalHashValue;
int verifyHashValue;
try
{
originalHash = decodedLicenseKey.Substring(p.Key, p.Value.Length);
originalHashValue = int.Parse(originalHash, System.Globalization.NumberStyles.HexNumber);
verifyHashValue = hashingProvider.Checksum16(decodedLicenseKey.Substring(0, p.Key));
}
catch
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
if (originalHashValue != verifyHashValue)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
}
}
// STEP 3: DeObfuscate key license placeholders that are not checksums
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
licenseKeyArray = decodedLicenseKey.ToCharArray();
for (int i = 0; i < p.Value.Length; i++)
{
char previousChar = licenseKeyArray[(p.Key) - 1];
char deObfKey = KeyIntegerValueDeObfuscator(previousChar, licenseKeyArray[p.Key + i], p.Key + i);
licenseKeyArray[p.Key + i] = deObfKey;
}
decodedLicenseKey = new string(licenseKeyArray);
}
}
// STEP 4: Validate each non-checksum placeholder
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
switch (p.Value.ValidationType)
{
case ValidationTypes.LicenseKeyType:
int licenseKeyTypeValue = 0;
bool licenseKeyTypeValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out licenseKeyTypeValue);
// The LicenseKeyType value should be able to be converted to an int, else it is invalid
if (!licenseKeyTypeValueCheck)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
LicenseKeyTypeFlag typeFlag;
// It is possible that a LicenseKeyType has no supporting LicenseKeyTypeFlag (which means it was
// placeholded in the LicenseKeyType enum but is not operable). If this parse (cast) fails then
// there was a valid LicenseKeyType enum value but no valid LicenseKeyTypeFlag value.
try
{
int type = licenseKeyTypeValue;
if (((LicenseKeyTypes)licenseKeyTypeValue) == LicenseKeyTypes.HardwareLockLocal)
{
type = (int)LicenseKeyTypes.HardwareLock;
}
typeFlag = (LicenseKeyTypeFlag)Enum.Parse(typeof(LicenseKeyTypeFlag), ((LicenseKeyTypes)type).ToString(), true);
}
catch (Exception)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
LicenseSet ls = null;
try
{
var licSetPH = placeholerLocations.Where(x => x.Value.ValidationType == ValidationTypes.LicenseSet).SingleOrDefault();
int licenseSetIdValue1 = int.Parse(decodedLicenseKey.Substring(licSetPH.Key, licSetPH.Value.Length));
Debug.WriteLine(string.Format("Decoded Key: {0}", decodedLicenseKey));
Debug.WriteLine(string.Format("LicenseSet Placeholder: {0}", licSetPH));
Debug.WriteLine(string.Format("LicenseSet Placeholder Key: {0}", licSetPH.Key));
Debug.WriteLine(string.Format("LicenseSet Placeholder Length: {0}", licSetPH.Value.Length));
Debug.WriteLine(string.Format("LicenseSetId Value: {0}", licenseSetIdValue1));
Debug.WriteLine(string.Format("LicenseSets: {0}", scutexLicense.LicenseSets.First().LicenseSetId));
ls = scutexLicense.LicenseSets.Where(x => x.LicenseSetId == licenseSetIdValue1).SingleOrDefault();
}
catch
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
Debug.WriteLine(string.Format("LicenseSet: {0}", ls));
if (ls == null)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
Debug.WriteLine(string.Format("LicenseSet Types: {0}", ls.SupportedLicenseTypes));
// If the LicenseSet does not support the key type supplied then throw an error
if (!ls.SupportedLicenseTypes.IsSet(typeFlag))
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
case ValidationTypes.LicenseSet:
int licenseSetIdValue = 0;
bool licenseSetIdValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), out licenseSetIdValue);
// The LicenseSetId value should be able to be converted to an int, else it is invalid
if (!licenseSetIdValueCheck)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
LicenseSet ls1 = null;
try
{
ls1 = scutexLicense.LicenseSets.Where(x => x.LicenseSetId == licenseSetIdValue).SingleOrDefault();
}
catch
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
if (ls1 == null)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
case ValidationTypes.Product:
int productIdValue = 0;
bool productIdValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), out productIdValue);
// The ProductId value should be able to be converted to an int, else it is invalid
if (!productIdValueCheck)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
if (scutexLicense.Product.ProductId != productIdValue)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
case ValidationTypes.Fingerprint:
string fingerPrint = hashingProvider.Checksum16(_fingerprintService.GetHardwareFingerprint(FingerprintTypes.Default)).ToString("X");
if (fingerPrint != p.Value.Value)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
case ValidationTypes.ProductIdentifier:
string prodId = hashingProvider.Checksum16(scutexLicense.GetLicenseProductIdentifier()).ToString("X");
prodId = prodId.PadLeft(4, char.Parse("0"));
if (prodId != p.Value.Value)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
case ValidationTypes.None:
string keyValue = decodedLicenseKey.Substring(p.Key, p.Value.Length);
if (keyValue != p.Value.Value)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
default:
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
}
}
return(true);
}
public RegisterResult Register(string licenseKey, LicenseBase scutexLicense, ScutexLicense license)
{
RegisterResult registerResult = new RegisterResult();
registerResult.ScutexLicense = license;
bool result = _licenseKeyService.ValidateLicenseKey(licenseKey, scutexLicense, true);
ClientLicense cl = null;
if (result)
{
KeyData keyData = _licenseKeyService.GetLicenseKeyData(licenseKey, scutexLicense, false);
if (keyData.LicenseKeyType != LicenseKeyTypes.Enterprise && keyData.LicenseKeyType != LicenseKeyTypes.HardwareLockLocal)
{
try
{
if (keyData.LicenseKeyType == LicenseKeyTypes.HardwareLock)
{
cl = _licenseActivationService.ActivateLicenseKey(licenseKey, null, false, (ClientLicense)scutexLicense, _hardwareFingerprintService.GetHardwareFingerprint(FingerprintTypes.Default));
}
else
{
cl = _licenseActivationService.ActivateLicenseKey(licenseKey, null, false, (ClientLicense)scutexLicense, null);
}
if (cl.IsLicensed && cl.IsActivated)
{
registerResult.Result = ProcessCodes.ActivationSuccess;
registerResult.ClientLicense = cl;
}
else
{
registerResult.Result = ProcessCodes.ActivationFailed;
}
}
catch
{
registerResult.Result = ProcessCodes.ActivationFailed;
}
}
else
{
cl = _licenseActivationService.ActivateLicenseKey(licenseKey, null, true, (ClientLicense)scutexLicense, null);
registerResult.Result = ProcessCodes.LicenseKeyNotActivated;
}
}
else
{
registerResult.Result = ProcessCodes.KeyInvalid;
}
if (cl != null)
{
license.IsLicensed = cl.IsLicensed;
license.IsActivated = cl.IsActivated;
license.ActivatedOn = cl.ActivatedOn;
}
return(registerResult);
}
private void PrintReadable(List <PackageDef> packages, HashSet <PackageDef> installed)
{
var packageList = packages.GroupBy(p => p.Name).Select(x => x.OrderByDescending(p => p.Version).First()).OrderBy(x => x.Name).ToList();
if (packageList.Count == 0)
{
log.Info("Selected directory has no packages installed.");
return;
}
var nameLen = packageList.Select(p => p.Name?.Length).Max();
var verLen = packageList.Select(p => p.Version?.ToString().Length).Max() ?? 0;
verLen = Math.Max(verLen, installed.Select(p => p.Version?.ToString().Length).Max() ?? 0);
foreach (var plugin in packageList)
{
var installedPackage = installed.FirstOrDefault(p => p.Name == plugin.Name);
var latestPackage = packages.Where(p => p.Name == plugin.Name).OrderByDescending(p => p.Version).FirstOrDefault();
string logMessage = string.Format($"{{0,-{nameLen}}} - {{1,-{verLen}}}{{2}}", plugin.Name, (installedPackage ?? plugin).Version, installedPackage != null ? " - installed" : "");
if (installedPackage != null && installedPackage?.Version?.CompareTo(latestPackage.Version) < 0)
{
logMessage += $" - update available ({latestPackage.Version})";
}
// assuming that all dlls in the package requires has the same or distinct license requirements.
// Duplicates are made if one file requires X|Y and the other X|Z or even Y|X.
var licensesRequiredStrings = plugin.Files.Select(p => p.LicenseRequired).Where(l => string.IsNullOrWhiteSpace(l) == false).Select(l => LicenseBase.FormatFriendly(l)).Distinct();
var licenses = string.Join(" & ", licensesRequiredStrings);
if (licenses != "")
{
logMessage += " - requires license " + licenses;
}
log.Info(logMessage);
}
}
internal List <LicensePlaceholder> CreateLicensePlaceholders(LicenseBase scutexLicense, LicenseGenerationOptions generationOptions)
{
List <LicensePlaceholder> Placeholders = new List <LicensePlaceholder>();
if (generationOptions != null)
{
Placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("k"),
Type = PlaceholderTypes.Number,
Value = ((int)generationOptions.LicenseKeyType).ToString(),
IsChecksum = false,
ValidationType = ValidationTypes.LicenseKeyType
});
}
else
{
Placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("k"),
Type = PlaceholderTypes.Number,
Value = "0",
IsChecksum = false,
ValidationType = ValidationTypes.LicenseKeyType
});
}
Placeholders.Add(new LicensePlaceholder
{
Length = 2,
Token = Char.Parse("a"),
Type = PlaceholderTypes.Number,
Value = scutexLicense.Product.GetFormattedProductId(2),
IsChecksum = false,
ValidationType = ValidationTypes.None
});
Placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("c"),
Type = PlaceholderTypes.Number,
Value = "",
IsChecksum = true,
ValidationType = ValidationTypes.None
});
string licProdChecksum = hashingProvider.Checksum16(scutexLicense.GetLicenseProductIdentifier()).ToString("X");
if (licProdChecksum.Length < 4)
{
licProdChecksum = licProdChecksum.PadLeft(4, char.Parse("0"));
}
Placeholders.Add(new LicensePlaceholder
{
Length = 4,
Token = Char.Parse("p"),
Type = PlaceholderTypes.Number,
Value = licProdChecksum,
IsChecksum = false,
ValidationType = ValidationTypes.None
});
return(Placeholders);
}
/// <summary>
/// Creates a *.TapPackage file from the definition in this PackageDef.
/// </summary>
static public void CreatePackage(this PackageDef pkg, string path)
{
foreach (PackageFile file in pkg.Files)
{
if (!File.Exists(file.FileName))
{
log.Error("{0}: File '{1}' not found", pkg.Name, file.FileName);
throw new InvalidDataException();
}
}
if (pkg.Files.Any(s => s.HasCustomData <MissingPackageData>()))
{
bool resolved = true;
foreach (var file in pkg.Files)
{
while (file.HasCustomData <MissingPackageData>())
{
MissingPackageData missingPackageData = file.GetCustomData <MissingPackageData>().FirstOrDefault();
if (missingPackageData.TryResolve(out ICustomPackageData customPackageData))
{
file.CustomData.Add(customPackageData);
}
else
{
resolved = false;
log.Error($"Missing plugin to handle XML Element '{missingPackageData.XmlElement.Name.LocalName}' on file {file.FileName}. (Line {missingPackageData.GetLine()})");
}
file.CustomData.Remove(missingPackageData);
}
}
if (!resolved)
{
throw new ArgumentException("Missing plugins to handle XML elements specified in input package.xml...");
}
}
string tempDir = Path.GetTempPath() + Path.GetRandomFileName();
Directory.CreateDirectory(tempDir);
log.Debug("Using temporary folder at '{0}'", tempDir);
try
{
UpdateVersionInfo(tempDir, pkg.Files, pkg.Version);
// License Inject
// Obfuscate
// Sign
CustomPackageActionHelper.RunCustomActions(pkg, PackageActionStage.Create, new CustomPackageActionArgs(tempDir, false));
// Concat license required from all files. But only if the property has not manually been set.
if (string.IsNullOrEmpty(pkg.LicenseRequired))
{
var licenses = pkg.Files.Select(f => f.LicenseRequired).Where(l => l != null).ToList();
pkg.LicenseRequired = string.Join(", ", licenses.Distinct().Select(l => LicenseBase.FormatFriendly(l, false)).ToList());
}
log.Info("Creating OpenTAP package.");
pkg.Compress(path, pkg.Files);
}
finally
{
FileSystemHelper.DeleteDirectory(tempDir);
}
}
internal List <LicensePlaceholder> CreateLicensePlaceholders(LicenseBase scutexLicense, LicenseGenerationOptions generationOptions)
{
List <LicensePlaceholder> placeholders = new List <LicensePlaceholder>();
string payload = null;
if (generationOptions != null)
{
placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("k"),
Type = PlaceholderTypes.Number,
Value = ((int)generationOptions.LicenseKeyType).ToString("X"),
IsChecksum = false,
ValidationType = ValidationTypes.LicenseKeyType
});
placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("s"),
Type = PlaceholderTypes.Number,
Value = generationOptions.LicenseSetId.ToString(),
IsChecksum = false,
ValidationType = ValidationTypes.LicenseSet
});
if (generationOptions.LicenseKeyType == LicenseKeyTypes.HardwareLockLocal)
{
placeholders.Add(new LicensePlaceholder
{
Length = 4,
Token = Char.Parse("p"),
Type = PlaceholderTypes.String,
Value = hashingProvider.Checksum16(generationOptions.HardwareFingerprint).ToString("X"),
IsChecksum = false,
ValidationType = ValidationTypes.Fingerprint
});
}
else
{
payload = hashingProvider.Checksum16(scutexLicense.GetLicenseProductIdentifier()).ToString("X");
payload = payload.PadLeft(4, char.Parse("0"));
placeholders.Add(new LicensePlaceholder
{
Length = 4,
Token = Char.Parse("p"),
Type = PlaceholderTypes.String,
Value = payload,
IsChecksum = false,
ValidationType = ValidationTypes.ProductIdentifier
});
}
}
else
{
placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("k"),
Type = PlaceholderTypes.Number,
Value = "0",
IsChecksum = false,
ValidationType = ValidationTypes.LicenseKeyType
});
placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("s"),
Type = PlaceholderTypes.Number,
Value = "0",
IsChecksum = false,
ValidationType = ValidationTypes.LicenseSet
});
payload = hashingProvider.Checksum16(scutexLicense.GetLicenseProductIdentifier()).ToString("X");
payload = payload.PadLeft(4, char.Parse("0"));
placeholders.Add(new LicensePlaceholder
{
Length = 4,
Token = Char.Parse("p"),
Type = PlaceholderTypes.String,
Value = payload,
IsChecksum = false,
ValidationType = ValidationTypes.ProductIdentifier
});
}
placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("v"),
Type = PlaceholderTypes.Number,
Value = ((int)LicenseDataCheckTypes.Standard).ToString(),
IsChecksum = false
});
placeholders.Add(new LicensePlaceholder
{
Length = 2,
Token = Char.Parse("a"),
Type = PlaceholderTypes.Number,
Value = scutexLicense.Product.GetFormattedProductId(2),
IsChecksum = false,
ValidationType = ValidationTypes.Product
});
placeholders.Add(new LicensePlaceholder
{
Length = 4,
Token = Char.Parse("c"),
Type = PlaceholderTypes.Number,
Value = "",
IsChecksum = true,
ValidationType = ValidationTypes.None
});
placeholders.Add(new LicensePlaceholder
{
Length = 1,
Token = Char.Parse("l"),
Type = PlaceholderTypes.String,
Value = "F",
IsChecksum = false
});
//placeholders.Add(new LicensePlaceholder
//{
// Length = 1,
// Token = Char.Parse("s"),
// Type = PlaceholderTypes.String,
// Value = "0",
// IsChecksum = false
//});
return(placeholders);
}
public KeyData GetLicenseKeyData(string licenseKey, LicenseBase scutexLicense)
{
// Init all required variables for the process.
Dictionary <int, LicensePlaceholder> placeholerLocations;
List <LicensePlaceholder> licensePlaceholders = CreateLicensePlaceholders(scutexLicense, null);
char[] licenseKeyArray;
string decodedLicenseKey = licenseKey.Replace("-", "");
KeyData keyData = new KeyData();
keyData.IsKeyValid = true;
// Locate all the placeholder tokens in the license template
placeholerLocations = FindAllPlaceholdersInTemplate(licenseKeyTemplate.Replace("-", ""), licensePlaceholders);
bool isKeyValid = ValidateLicenseKey(licenseKey, scutexLicense);
keyData.IsKeyValid = isKeyValid;
if (isKeyValid)
{
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
licenseKeyArray = decodedLicenseKey.ToCharArray();
for (int i = 0; i < p.Value.Length; i++)
{
char previousChar = licenseKeyArray[(p.Key) - 1];
char deObfKey = KeyIntegerValueDeObfuscator(previousChar, licenseKeyArray[p.Key + i], p.Key + i);
licenseKeyArray[p.Key + i] = deObfKey;
}
decodedLicenseKey = new string(licenseKeyArray);
}
}
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
if (p.Value.Token == Char.Parse("k"))
{
int licenseKeyTypeValue = 0;
bool licenseKeyTypeValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), out licenseKeyTypeValue);
if (licenseKeyTypeValueCheck)
{
keyData.LicenseKeyType = (LicenseKeyTypes)licenseKeyTypeValue;
}
}
else if (p.Value.Token == Char.Parse("a"))
{
int prodValue = 0;
bool prodValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), out prodValue);
if (prodValueCheck)
{
keyData.ProductId = prodValue;
}
}
else if (p.Value.Token == Char.Parse("s"))
{
int licenseSetValue = 0;
bool licenseSetValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), out licenseSetValue);
if (licenseSetValueCheck)
{
keyData.LicenseSetId = licenseSetValue;
}
}
}
}
}
return(keyData);
}
public string GenerateLicenseKey(string rsaXmlString, LicenseBase scutexLicense, LicenseGenerationOptions generationOptions)
{
// Init all required variables for the process.
Dictionary <int, LicensePlaceholder> placeholerLocations;
List <LicensePlaceholder> licensePlaceholders = CreateLicensePlaceholders(scutexLicense, generationOptions);
string licenseKey;
char[] licenseKeyArray;
// Setup the license key to work on
licenseKey = licenseKeyTemplate.Replace("-", "");
// Locate all the placeholder tokens in the license template
placeholerLocations = FindAllPlaceholdersInTemplate(licenseKey, licensePlaceholders);
// Verify that all the registered placeholders were located in the template.
if (placeholerLocations.Count != licensePlaceholders.Count)
{
throw new Exception(string.Format(Resources.ErrorMsg_PlaceholderCount,
licensePlaceholders.Count, placeholerLocations.Count));
}
// Change all non-checksum placeholders to their actual values in the key
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
string token = "";
for (int i = 0; i < p.Value.Length; i++)
{
token = token + p.Value.Token;
}
licenseKey = licenseKey.Replace(token, p.Value.Value);
}
}
// Compute and change the random license key placeholders
licenseKeyArray = licenseKey.ToCharArray();
for (int i = 0; i < licenseKeyArray.Length; i++)
{
if (licenseKeyArray[i] == char.Parse("x"))
{
licenseKeyArray[i] = GetRandomCharacter();
}
}
licenseKey = new string(licenseKeyArray);
// Obfuscate key license placeholders that are not checksums
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
if (p.Value.Type == PlaceholderTypes.Number)
{
//Console.WriteLine(p.Value.Token);
//Console.WriteLine("-----------------");
licenseKeyArray = licenseKey.ToCharArray();
for (int i = 0; i < p.Value.Length; i++)
{
char previousChar = licenseKeyArray[(p.Key) - 1];
int data = int.Parse(licenseKeyArray[p.Key + i].ToString(), NumberStyles.HexNumber);
char obfKey = KeyIntegerValueObfuscator(previousChar, data, p.Key + i);
licenseKeyArray[p.Key + i] = obfKey;
}
licenseKey = new string(licenseKeyArray);
}
else if (p.Value.Type == PlaceholderTypes.String)
{
licenseKeyArray = licenseKey.ToCharArray();
for (int i = 0; i < p.Value.Length; i++)
{
char previousChar = licenseKeyArray[(p.Key) - 1];
int modData = CharacterMap.ReverseMap[licenseKeyArray[p.Key + i]];
//Console.WriteLine(string.Format("Char: {0}", licenseKeyArray[p.Key + i]));
char obfKey = KeyIntegerValueObfuscator(previousChar, modData, p.Key + i);
licenseKeyArray[p.Key + i] = obfKey;
}
licenseKey = new string(licenseKeyArray);
}
}
}
// Now compute and change all the checksum placeholders in the key
foreach (var p in placeholerLocations)
{
if (p.Value.IsChecksum)
{
string token = "";
for (int i = 0; i < p.Value.Length; i++)
{
token = token + p.Value.Token;
}
string hash = hashingProvider.Checksum16(licenseKey.Substring(0, p.Key)).ToString("X");
hash = hash.PadLeft(4, char.Parse("0"));
licenseKey = licenseKey.Replace(token, hash);
}
}
// Insert the seperators
List <int> seperatorLocations = FindAllSeperatorsInTemplate(licenseKeyTemplate);
string finalKey = licenseKey;
if (seperatorLocations.Count > 0)
{
int remaining = seperatorLocations.Count - 1;
for (int i = 0; i < seperatorLocations.Count; i++)
{
finalKey = finalKey.Insert(seperatorLocations[i] - remaining, "-");
remaining--;
}
}
return(finalKey);
}
public bool ValidateLicenseKey(string licenseKey, LicenseBase scutexLicense)
{
// Init all required variables for the process.
Dictionary <int, LicensePlaceholder> placeholerLocations;
List <LicensePlaceholder> licensePlaceholders = CreateLicensePlaceholders(scutexLicense, null);
char[] licenseKeyArray;
string decodedLicenseKey = licenseKey.Replace("-", "");
// Locate all the placeholder tokens in the license template
placeholerLocations = FindAllPlaceholdersInTemplate(licenseKeyTemplate.Replace("-", ""), licensePlaceholders);
// STEP 1: Basic length checks
if (licenseKey.Length != licenseKeyTemplate.Length)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
if (decodedLicenseKey.Length != licenseKeyTemplate.Replace("-", "").Length)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
// STEP 2: Compute and verify all the cheksums in the key
foreach (var p in placeholerLocations)
{
if (p.Value.IsChecksum)
{
string originalHash = decodedLicenseKey.Substring(p.Key, p.Value.Length);
int originalHashValue = 0;
// Try and covert the value from originalHash into a Hex number, if this value has been changed (altered) the key is invalid as
// it should always be a hex value.
bool verifyHexOriginalHash = int.TryParse(originalHash, NumberStyles.HexNumber, CultureInfo.InvariantCulture,
out originalHashValue);
// If this isn't a hex value throw the standard exception
if (!verifyHexOriginalHash)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
// Compute the hash again using the rest of hte license key.
int verifyHashValue = int.Parse(hashingProvider.GetChecksumChar(decodedLicenseKey.Substring(0, p.Key)).ToString(), NumberStyles.HexNumber);
// Verify that the stored has is the same as the newly computed hash
if (verifyHashValue != originalHashValue)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
if (!hashingProvider.ValidateChecksumChar(decodedLicenseKey))
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
}
}
// STEP 3: DeObfuscate key license placeholders that are not cheksums (so they can be verified)
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
licenseKeyArray = decodedLicenseKey.ToCharArray();
for (int i = 0; i < p.Value.Length; i++)
{
char previousChar = licenseKeyArray[(p.Key) - 1];
char deObfKey = KeyIntegerValueDeObfuscator(previousChar, licenseKeyArray[p.Key + i], p.Key + i);
licenseKeyArray[p.Key + i] = deObfKey;
}
decodedLicenseKey = new string(licenseKeyArray);
}
}
// STEP 4: Validate each non-checksum placeholder
foreach (var p in placeholerLocations)
{
if (!p.Value.IsChecksum)
{
switch (p.Value.ValidationType)
{
case ValidationTypes.LicenseKeyType:
int licenseKeyTypeValue = 0;
bool licenseKeyTypeValueCheck = int.TryParse(decodedLicenseKey.Substring(p.Key, p.Value.Length), out licenseKeyTypeValue);
// The LicenseKeyType value should be able to be convered to an int, else it is invalid
if (!licenseKeyTypeValueCheck)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
LicenseKeyTypeFlag typeFlag;
// It is possible that a LicenseKeyType has no supporting LicenseKeyTypeFlag (which means it was
// placeholded in the LicenseKeyType enum but is not operable). If this parse (cast) fails then
// there was a valid LicenseKeyType enum value but no valid LicenseKeyTypeFlag value.
try
{
typeFlag = (LicenseKeyTypeFlag)Enum.Parse(typeof(LicenseKeyTypeFlag), ((LicenseKeyTypes)licenseKeyTypeValue).ToString(), true);
}
catch (Exception)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
// If the LicenseSet does not support the key type supplied then throw an error
if (!scutexLicense.LicenseSets.First().SupportedLicenseTypes.IsSet(typeFlag))
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
case ValidationTypes.None:
string keyValue = decodedLicenseKey.Substring(p.Key, p.Value.Length);
if (keyValue != p.Value.Value)
{
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
break;
default:
throw new ScutexLicenseException(Resources.ErrorMsg_VerifyLicenseKey);
}
}
}
// If we've gotten this far then it must be valid, right?
return(true);
}
